Carton-packing mechanism



`A. w. HARms.

CARTON PACKING MECHANISM.

APPucAnoN f|LEn'1An.|z, 1919.

Patented July 6, 1920.

13 SHEES-SHEE l.

A. w. HARRIS. CAHTQN PACKING MECHANISM.

l I l APPLICATION FILED 1AN.I7,I9I9. 1,345,926.

Patented July 6, 1920..

A. W. HARRIS.

cAmoN PACKING mEcHANlsM. APPLICATION FILED IAN. I?, I9I9.

1,345,926, Patented July 6, 1920.

, I3 SHEEIS-SHEEI 3. I 330 324 323 F761 i6, 30?

Wm f @Mi-MMI,

A. W. HARRIS. CARTON PACKING MEcHAmsM.

APPLICATION FILED IAN. I7. |919- i 1,345,926. Patented July 6, 1920.

I3 SHEEIS-SHEEI 4.

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CARTON PACKING MECHANISM.

APPUCAHON HLED1AN.17,1919,

Patented July 6, 120.

13 sHEExs-sHEEI 5.'

-A. W. HARRIS. CARTON PACKING MEcHANIsrII.

APPLICATION FILED IAN. I7, 1919.

mamma July 6, 1920;

13 SHEETS-SHEEI 6.

A. w. HARRIS.

y vCARTON PACKING MECHANISM,

' APPLICAHON HLED JAN.17, 1919- 1,345,926 Patented July 6,1920.

13 SHEES-SHEE I.

iii!

A. W. HARRIS.

CARTON PACKING MECHANISM.

- A PPLlcAnoN FILED 1AN.17,1919. 1 41,345,926, Patented July 6, 1920.

1s sHEEIs-sHEEr A. W. HARRIS.

Pawnted July 6, 1920;

13 SHEEIS-SHEEI 9.

CARTON PACKING MECHANISM.

i APPLICATION FILED IAN. I7, I9I9A 1,345,926.

A. W. HARRIS.

CARTON PACKING MECHANISM. APPLICATION FILED JAN.17. 19,19.

Patented July 6, 1920.

I3 SHEETS-SNEEK l0.

A. W. HARRIS.

CARTON PACKING MECHANISM.v

APPLICATION HLED JAN.17.1919.

1,345,926. Patented July 6,1920. I3 SHEETS-SHEE ll.

`v" Q g E uw O N toQmLQ 8 n7`\\ L l [2L Q v N N I A. wf. HARRIS.

CARTON PACKING MECHANISM.

t APPLICAION FILED JAN-17,1919.

Patented July 6, 1920..

I3 SHEETS-SHEEI 12.

mow NN NQN RN SMN Patented July 6, 1920.-*

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BY I I @im MDN CARTON PACKING 4MECHANISIIII.` APPLICATION FILED IAN. I?,I9I9.

MNM. www, bNm

NMN RN wi kga ARTHUR W. HARRIS, OF SLEEPY EYE, MINNESOTA.

CARTON-PJ`1GKING lllECI-IANISM.

realicen.

Application ledJanuary 1*?, 1919.

l o all w/ionml may cof/town lie it lrnon'n that l, in'rriUn W. HARRIS,a citizen olf the linited fcltates, resident olf Sleepy lflye, count),7olli llrown, ltate of Minnesota, have invented certain new and useliulimprovements in lJarton-Packing Mechanism, of which the 'following is aspecili cation.

lily invention relates in general to the filling and packing or cartonswith flat articles, and more particularly to such packing of flattenedpaper hores or hands as they are' discharged from the forming,collapsing and vflattening mechanism oi? the machine illustrated anddescribed in my pending application 'for U. S. patent, filed N0- vemher2T, i.lli, Serial No. 204,165.

'lviie object o'i my ini/ention is to provide meclnmism, as a part oithe machine referred to, "r'or feeding and placing the empty cartous inthe machine, lilling and packing the cartons with the collapsed andi'lattened hands, removing the cartons a'lter heing lilled to a position'for closing the open end or mouth oit the carton and alter the closingoperation, cjecting or dropping the packed 'arten 'from the machine.

lnother object is to provide means for inverting and deliif'ering thefiat or collapsed hands to the carton so that the folded or lapped endsor the hands 'will he alternately re'-.'ersed in position in the carton,thus preserving uniform alinement of the bands and greatly increasingthe number oit hands whichV maj,7 he packed into the carton.

lily invention consists in mechanism Jfor plaring the carton,positioning and delivering the hands to the carton, holding the hands inposition while lining packed, removing the carton and means for driving,timing and coordinating the operating mechanism.

liiy invention 'hirthcr consists in various mnstrnctions andcombinations, all as hereina iter described and particularly pointed outin the claims, taken in connection with the' accompanying drawings, inWhich- `Figure l is a side elevation of the portion oi a. machinenecessary to fully illustrate the invention and showing its connectionwith the hoii-iiorming and Aflattening mechanism,

llig. 2 is an end elevation on a larger scale of Fig. l,

Fig. 3 is a `vertical transverse section on the line 3-3 of Fig. 1,

Specification oi Letters Patent.

Patented July 6, 1920.

serial no. 271,636.

lfig. is a similar section, illustratino` the carton feeding and placinginechanismu l `ig. 5 is a horizontal section on the line 5- of Fig. l,

Fig. 6 is a part of Fig. 5, illustrating` the mechanism for dischargingthe packed carton,

Fig. is a vertical longitudinal section on L l. thelme r-r of lig. 5,

lFig. 8 is a transverse vertical section on the line 8 8 of Fig. 5,

lFig. 9 is a horizontal section of a part of the machine shown in F ig.l, F ig. ll() is a section on the line lO--lU of l? 1g. E), illustratingthe clutch mechanism for starting and stopping the carton-holdingcarriage,

l lfig. .ll is a detail of the clutches shown in VFig. l() andillustrates the preferred clutch V"onstrnction for use throughout themachine,

Fig. l2 is a detail View o'l" the carton-placing and holding parts,illustrating how `the carton is released after being filled,

Fig. 13 shows the mouth olf the carton With the band holders and packerin their relative positions before the packing of the carton begun, i

Fig, let is a broken section on Fig. 13 showing the same parts inposition after the carton is filled, Y

Fig. l5 is a section on the line 15-15 of n 1 3, illustrating theoperation of the hand holders,

Fig. 1G is a section through the carton, further illustrating theoperation of the hand holders,

Fig. li' is a broken horizontal vienT of the arten carriage,

Fig. 18 is a section on the line l8-l8 of l? i7, illustrating thecarriage operation,

F ig. l!) is a detached View, illustrating more in detail the operationol the carriage,

Fig. 2O is a horizontal section on the line sii-eo of Fig. is,

Fig` 21 is a sectional View through the hand flattening jaws anddischarging hopper, illustrating theposition of the hand as it isejected irom the hand-former, and one ot the two positions of the handinverter for directing the hands,

Fig, 22 is `sectional View of the band hopper, illustrating the otherposition of the hand inverter at'ter inverting a hand,

Fig. 28 is a section on the line 23-23 of 'p il, illustrating thedriving and clutch mechanism for the hand inverter.

Fig. 24 is a vertical longitudinal section of the carton carriage,showing a carton in Y place and partly filled and illustrating thepositions of the packing parts when ready to pack a band,-

Figs. 25 and 2G illustrate successive steps in the operation of packingthe bands in the carton,

Fig. 27 is a view similar to Fig. 24, show-V ing the carriage and cartonremoved from the packing position and in the act of being'conductedtothe closing position.

The frame may be of any preferred construction Vadapted to supporti andconnect the various coperating parts and I Ashall not, therefore,describe it in detail but will designate it by the numeral 30 wheneverit is hereafter referred to in the specification.

The primary dri/ving and conf/rolling mecham'sm.

Referring to Figs. l, 5, 7 and 8, the `primary or constantly revolvingdriving shaft 3l is mounted in suitable bearings on the frame 8O andprovided with a driving pulley 32, bevel gear, clutch ldisk 84, clutchcollar 35 and retaining collar 36. vThe bevel gear 83 meshes withanother bevel gear'37 fastened to an upright shaft 38 journaledf 'it isdesired. to pack into a carton, as the shaft makes one revolutionV foreach filled carton,

A clutch controlling arm 47 and clutchV controlling disks 48 and 49 arefastened to the shaft 45 and revolve slowly therewith. (in account ofthe very slow motion of the disks, especially when packing a large numyber of bands in a carton, l find it necessary to provide'means for morerquickly mov-` ing the clutch controlling yparts at every revolution ofthe shaft 45. To this end the arm 47 and disks 48 and 49 are providedwith yielding cam arms 50, 5l and 52, respectively, `which by slightlateral movements may be made to quickly change their path ofrevolution. 'A stationary bracket is supported on the shafts 3l and 45and is provided with laterally adjustable but normally stationary bars26 and 27, having beveled ends 28 and 29. A similar bar 23 having abeveled end 24 is arranged in a frame bracket 25. The shaft 45 revolvesin the direction of the arrows and as the cam arms revolve they engagethe beveled ends of the stationary lbars 23, 26 and 27, at the clutchshifting point, andV are quickly thrown from one position to the other,as indicated by dotted lines in Fig. 5. This action controls thestarting and stopping of the intermittent driving mechanism for thedifferent operations'of the machine, as will hereinafter be more rfullydescribed.

Referring to Fig. 5, theV three primary controlling clutch units, whichl will designate A, B and C', furnish theV driving power and controlthe'main operations of the machine. The' clutch unit A controls the bandforming, flattening and Apacking operations, which are performedsimultaneously. The clutch unit B Vcontrols the operation of feeding,placing and removing the carton while unit A is Aat rest.

The clutch unit' C controls the closing and locking mechanism andcoperates with unit B in certain functions hereinafter described. Tliemechanism controlled by unit C is operated simultaneously with unit Aduring a part of the time the carton is being packed.. As .thisVmechanism forms no part of the present.application, it will not bedescribed in detail except in so far it cordinates with and is necessarytothe present invention.

The iacrmiteat driving gear.

I will now describe the driving gear controlled by clutch unit A..

Referring to Figs. l Vand 8, a. clutch 54 is loosely mounted i on theshaft 3l and a sprocket 55 is rigidly secured to the hub of the clutch.A sprocket chain 56 connects the sprocket 54 to a sprocket 57, shown indotted lines in VF ig. l, on a shaft 58 which operates the feeding rolls59 andGO for the band former (il Vthrough a gear connection, not hereshown, as it forms a part of my pre vious application above referred to.A gear 62 on the sprocket shaft 58` meshes Vwith a gear 63 on ashaft 64and sprocket'65 on the same shaft transmits motion through a sprocketchain 66 andV spr cket 67 to the crank shaft G8, (Fig. l) Voperating thepacker, as will hereinafter be fully described under the head of Packingandde livering mechanism. o

The band former 6l. (the subject matter of my application Seriali No.204,155) is operated simultaneously with the packer through an idlergear 69, pinion 7 0 and a clutch (not shown, being no part of thepresent invention). rlhe idler 69 a so simultaneously transmits motionto the band flattening mechanism through gears 7l and 72 upon shafts 7 3and 7 4 respectively and to the band inverting and delivering mechanismthrough a gear 75 upon the shaft 73 and a gear 76 upon theband-inverting shaft 77 (Fig. l) which is mounted in bearings 82a. (Seeli .fis the revolution of this shaft is intermittent, for reasonshereinafter described, it is provided with a clutch 7S (Fig. 23) rigidlyfastened thereto. The gear 76 is loosely mounted on the shaft T7 and.meshes with a gear 'i' 9 fastened to a shaft 80 having suitablebearing-1 oo the traine ot the machine. T he shafts 7i and 00 arearranged upon opposite sides ot the inverter shatt 'TT and carrycaniarms 93 and ildand controller arms S3 and 84 adapted to control theoiiierations ot the clutch 78. (See Fig. rllheV construction oi" thisclutch, shown, dillers slightly in detail from the clutches ashereinafter described, but its operation and control by the cam arms arethe saine. The preferred clutch Construction is the subject-inatter ot aseparate application, iiled December 13, 1918, Serial No. 206,60f, and lwill now only describe it in suiiicient detail to make its applicationto the present invention understood.

Referring to Figs. 10 and 11, the clutch body S5 is shown to be rigidlysecured or splined to the shaft 86. A locking bolt or clutch pin 87 isarranged to slide in bearings 8S and S9 parallel with the shaft 86. Abell crank lever 90 is pivoted at 91 in a, recess through which the pin8T passes and one end 93 ot the bell crank engages a notch 5Min the pin.rl'he other and forked end 95 eniln'aces a rounded head 96 oit a curvedclutch lever 97, piroted at 9S in a slotted recess 99 of the clutch body05 and having an outwardly projecting lug` 97. A spring 100 tends to.'torce this hip; outwardly and at the saine time tends to torce the bellcrank lever 90 and clutch pin 8? from the position shown in full linesin Fig'. 11 to the dotted line position shown in the saine ligure. lnthe full line position the clutch pin 8? projects beyond the end ot theclutch body at 101 and into an aperture ot a flexible locking' bar 102,secured to the traine 30 at 103. ln this position the shalft S0 islocked against rotation and the clutch pin 87 is held in the locking`position by means of' a spring' latch 10dpivoted to the clutch body at105 having; a projiectine end 100 and teusioned by a spring` 107 toengage a notch 108 in the pin Si'. A drh/ing` clutch gear 109 is looselyjournaled ou the shaft 8G and is provided with one or more apertures110, radially in line with the clutch pin 87. llilhen the latch 104 isforced out ot the notch 10S the tension of the spring; 100 forces theclutch pin against the side ot the reif'olvingg` ,Igea r 109 in positionto quickly enter an aperture 11.0 and Withdraw liroln the locking bar102 and alloiv the shaift S0 to start. By this operation the clutchlever 9T is rocked en its pivot and the luie` 97 is projected outwardinto the path of a rwolvine` camv arm 111 arranged upon a shaft 112 andgeared to rotate at equal speed with the gear 109 (see Fig. 11). When alull revolution ot the shafts has been com plated, the lip 99 Will beforced backward by the'cani armI 111 to the position shown in Fig. 10and the parts restored to the locked position shown in lllig. When thecontroller shaft 112 has completed another' revolution, the clutch isairain started by the controller arm 118 engaging the projecting' end.106 of the latch 101V and unlockiirg` the clutehpin. lt will beunderstood that With an equal speed ratio oic the clutch and con trollershafts and a single controller arm, the clutch shalt will make one Vfullrevolution and Will pause during the next 'full revolution of thecontroller shalt, and with tivo oppositely arranged controller shaftsand arms the clutch shaft Will rotate intermittently in halfrevolutions.

As shown in clutch units A, B and C, instead o the latch 10d forlockingthe chiteli pin out of engagement with tlu` rotating;v gearchiringthe stops, the cam arm 111 might take the term ot a circular diskWith the lug,` 97 ot the clutcn lever 9T bearing;` against the peripheryot' the disk having' a cutaway section to release the rlutch, as shownat lil and C in Fig. 5.

ln the application ot the clutch mechanism heretofore described toclutch units A, l? and t), it will also be uinlerstood 'that clutch disk811 and clutch collar lo operate like the clutch gear '109 to drive theclutch and that clutch connections and rele: are made in a similar wayby the operation ol the clutch lever 9T. rl`he clutch then will be inrevolving),l connection only when the lug 97 of the clutch lever is treefrom the peripheral tace of the controller arms or disks 47. 18, andL19, as shown at i1 in Fig. 5 and in a locked inoperativeposition whenthe clutch .lever is tore-ed backward by the controller armsA` as shownat B and C. lis soon as the cam or disk-taces are removed from theclutch lug 97 either laterally or radially, clutch connection iseffected with the rotating; clutch members.

rllhe clutch 115, controlled by the cluti'h unit ll, is loosely mountedupon the shalt 31. T he clutch pin 5%?, shown in eiulagoinent with thelocking); bar 102, is adapted to niake clutch connection with the clutchcollar 35 when the clutch lever 9T is released (see Fig. 8).

A sprocket 11G is secured to the clutch body 115 and a chain 117lconnects the sprocket 116 with a sprocket 118 upon a vcounter shalt 120,that is viournaled in iii-aine brackets 121 (Fig. The shalt 120 carriesa second and smaller sprocket 122 which, tlniough a chain 122 andsproelifet 124, transmits revolution to a short sha'tt 125 1). A sinallpinion 120, shown in dotted lines in Figs. 1 and i', is fastened to thecounter shaft 125 and meshes with gears 127 and 128. The lfear 121- issecured upon the clutch controlling sha'lt 129 and meshes with theclutch gears 109 loosely clutch connection with clutch mounted. upon theclutch controlling shaft 129 and meshes with the clutch gears 109loosely mounted upon Vthe crank clutch shafts 180 and 181 to whichclutches 132 and 183 are secured. rllhe 109 again are in mesh with gears184. upon the controller shafts 185 and 186, which revolve continuouslywhile the clutch B is in operation. rlhc controller shafts 129 and 185carry cam arms 187 and 188 and controller arms 189 and 110 respectivelyfor the operation of the clutch 182 and the controller shafts L29 and186 carry cam arms M1 and 1. and controller arms and 111 respectivelyfor the operation of the clutch 18? (see Fig. 7).

.fis the timing and operation of this mech anism will behereinafterdescribed under the heading General operation of the machine,l will continue the description of the driving mechanism. rThe clutchshafts 136 and 181, controller shafts 185, 186 and 12 and counter shaft125 are journaled in bearings in a narrow frame section 11e (see Figs. 9and 1() but the shaft 1216 upon f3 .1.

` ing blocks 157 and 158 and is driven from 'the shaft 119 by a pair otmiter gears The shaft 156 drives a horizontal cam shaft 169 through apair of bevel gears 161. nfhe cam shaft is journaled in bearings 162 and168 and carries the cams 164 and 165, (Figs. 1, 2 and 9).

The intermittent driving for the closing and locking mezjhanism shown inFig. 1 will be described only as it pertains to this application, asfollows:

The clutch body 166 is loosely mounted on the shaft 81 and is adapted tomake collar 35, when its clutch lever 97 is released. It is providedwith a gear 167, meshing with a large gear 168 on a shaft 169, havingbearings 17 0 and 171 upon the frame 89. A vertical shaft 172 isarranged in bearings 178 and 1741 and is driven .from the shaft 169 bybevel gears 175 and a horizontal The hemd fiati/Lener and inverter.

The collapsing or flattening mechanism is a part of my applicationSerial No. 204,165, but will be briefly described in connection with theband inverting and delivering mechanism with which it has cooperatingconnections.

Referring to Figs. 1, 21, 22 and 28, the band lattener comprises acushion support ed aw member 189 pivoted at 181 and a moving jaw member182 pivoted at 188 to links 183.

rthe two jaw members converge downwardly toward a discharge opening 1811at the bottom and the member 182 has a swinging upward motion actuatedby a crank arm upon Ythe shaft 74- through connecting link 185 and abell crank lever 186. This lever is pivoted to `the frame bracket 187 at188 and connected to. the jaw member 182 by a link 189. Immediatelybelow the flattening aw is arranged a receiving hopper 190 in which awl-shaped flight 191 is arranged upon the intermittently turning shaft77. The rotation of the crank shaft is controlled by a clutch (notshown) which imparts an intermittentinov'ement to the shaft of' onecomplete revolution followed by a pause of equal. duratiou.- rllhesquare band or box 192 is ejected in a lateral direction from the bandformer (not shown) to the position between the angular converging jaws18() and 182, shown in F ig. 21. immediately thereafter the crank shaftTf1; begins its revolution and the band is flat tened and pressedbetween the vtwo jaws,the pressure exerted against the band depend- 'gon the tension of the spring cushion 198. ie toggle action of the bellcrank lever and connecting link 185 `reduces the power required for thepressing operation. `lWhen the shaft 74; has completed its revolutionand comes to a stop, the jaws 180 and 182 are in the original openbottom position, but the peculiar 'angular conformation of thefiatteningaws which, in the extended square form of the band terms a support, nowpermits the collapsed and flattened band to drop through the bottomopening 1841 into the hopper 190. lllhile the crank shaft 741 has made acomplete revolution to flatten land discharge the band, the invertershaftr'77 has made a half revolution and a pause and reversed theposition of the flight to present the open or mouth end of the flightuppermost for the reception of the band, as shown in Fig. 21, or thenarrow or closed end 196 uppermost, as shown in Fig. 22. As shown in'Fig. 21,' the band will drop into the open mouth and to the bottom ofthe flight and during the suc* ceeding half revolution of the flight theband will be turned over and drop out of the flight in an invertedposition with the lapped and locked Aend 197 iliointing douui, as shownin full lines in Fig. 22. During this inverting operation another bandhas l. O (l been inserted between the jaws, ready to be slots 218 (see Fig. 13). Long coil springs i'latteuod and this band, when dischargedfrom the jaws, will slide down over the outside t: ,ze of the `flightin' the original positien.` with the lapped and locked end pointing;`up, as shown in dotted lines in Fig. 21. The intermittent revolutions ofthe crank shait 741 and inverted si t 77 are timed to cause theVflattened bands to drop in alternatinverted positions and at somewhatirlor intervals from the hopper 190 through the vertical spout orconductor 198 to the packing chamber 199, (Fig. 211).

T/Lc pac/fici' and [2t/md holding mcclimzism.

The carton 200 in which the i'lattened bands 192 are to be packed isplaced in the position shown in Figs. 13, 1st, 2i, and 20 by meanshereinafter described. The bands are guided in an upright position tothe packing chamber 192 by the converging side walls ot the verticalconductor 198 and are delivered to the chamber between the pivot/edguide plate 201 and the packer head er plunger 202. The guide plate issecured to a spindle 203 having bearings in the walls of the spout 198and provided with a short, rigidly secured arm 20d, as shown in Fig.coil spring- 205 connected to the end ot the arm and to the frame at 206tends to hold the guide plate 201 in the vertical position shown in 241,26 and 27 and at the same time permits the plate to swing to thehorizontal position shown in l? ig. 25. The sides ott the packingchamber consist el yielding spring plates 207 fastened to the trame 30and converging inwardly, preierably provided with outwardly bentretaining ends 208 (Fig. 13). The bottom ot the chamber consists of asimilar spring plate 209 having an upturned retaining end 210 (Fig.1.5). rThe tour end flaps oi the suuare carton 2 fl), when in positionYlor packing, 'lit over the plates 207 and 209, the end olf the platesbeing about even with the iolding creases ot the flaps. The bands duringthe packing operation are supported in an nprigz'ht position in thecarton by side rods 212 passing through openings in the converging sideplates 207 and into the carton where they are provided with inwardly entendingv hooks 211. These hooks hold 'the bands in an upright positionin the carton and provision is made for automatically ad- ,a p the hookswhile the carton is being iilled and withdrawing them when the packinoi' the carton is completed. To this end ,1h reds pass backward throughthe packing` chamber and enter long tubes or pipes 215, rotatablysupported on the lrame 30 and provfled with end plugs 216 and 217 andlon udinal slots 21.8. The rods are slidable in plugs 216 and at theextreme lett haial end are provided with retaining collars 219, havingpins 220 projectingr into the 221 embrace the rods 212 and bearingagainst the collar 219 and pipe plug 216 normally hold the rods in theleft hand or retracted position, with the collar resting against thepipe plug 217, as shown in Fig. 13. I "The pipe plugs 216 and 217 haveprojecting ends 222 jonrnaled in blocks 223 and 224e, attached to theframe 30. The plugs 217 are provided with tilting arms 225 and by meansot which the pipes may be tilted backward and forward in movementslimited by stops 227 and 228, as shown in 15. The means i'or timing andcausing the tilting of the arms 225 are a part of the carton-placingmechanism and will be described'under this heading, but the object oliAthe tilting movement is to bring the hooks 21st of the rods 212 into theposition shown in full lines in Figs. 13, 14 and 15 before and duringthe operation oi filling and packing the; carton and to turn the hooksin the direction ot' the arrow in Fig. 15 close to the carton walls fortheir re lease from the bands and removal from the carton, the space 229between the bands and the carton walls being sufcient to permit of thewithdrawal of the hooks wien in a vertical position.

rl'he plunger or packing head 202 for the packing of the bands iscarried on the end of a rod 230 supported between guide rolls 231,arranged on the stationary pins 232 secured to the trame 30. he plungerrod 230 operated from the crank shaft 68 by means of the crank arm 233,connecting link 234 and toggle joint links and 236. The yoked togglelink 236 is pivoted to the trame .30 at 237, the toggle link 236 to theplunger rod at 238, and both toggle links to the connecting' link or rod231i at 239 (see Figs. 1 and 7).

ln the operation olf packing, the carton being supported in place forpacking, as hereinafter described, as a band is discharged froni thei'iattener and drops between the guide plate 201 and packer head 202, tothe upright position shown in Fig. 24, the packer heady or plunger 202will advance, forcing the band against the guide plate and graduallyraising the plate to a horizontal position, while the band will be kept'in an upright position by the resistance of the yielding side plates207, guide plates 201 and bottom plate 209. Assuming the first bandbeing packed and just bet'ore the completion oil' the plunger stroke,the hooks 21d will be forced slightly forward against the tension of thespring 209, as shown in Fig. 13, where the stroke is shown completed andthe plunger reversed, the first band being in the position assumed atthe end of the stroke, the retaining ends o1 the plates 209 and 207having passed back or' the band and the spring pressed hooks 214 thecartons.

holding the band against the ends of the plates. 1 prefer to extend thetop 211 of the plunger 202 backward, as shown in lfigs. 25 and 27, toreceive the bands before they drop to the bottom of the packing chamberand hold them up until the plunger is withdrawn from the chamber.

The next band delivered to the chamber will be inverted with respect tothe previous one and this alternate inversion of the bands will continuethroughout the packing of the carton, as indicated in Fig. 2li, untilthe carton is completely filled and the parts assume the position shownin Fig. 14k, when the package of bands will be the same thickness oneach end and will fit evenly and smoothly in the carton.

When the carton is filled, the hooks are turned downward and whenreleased from the pressure of the bands are forced backward by thesprings 221, permitting the removal of the carton. rlhe slots 218 in thepipes 215, collars 219 and pins 220 engaging the slots 218 provide meansfor effecting both the longitudinal and turning movement of the Vhooked.rods 212 (Fig. 13).

me chomsm.

Carton The driving gear for this mechanism has been described ascontrolled by the clutch unit 13 and it begins action when the packingoperation stops. The mechanism comprises a carriage movable in twosections, with means for delivering the empty cartons to this carriageand for supporting and removing the cartons from the carriage. Theconstruction of this carriage is best illustrated in Figs. 1, 3, 6, 9,12 and 17 to 20, where 242 represents grooved rails of the frame 30,upon which the carriage is slidably supported, and 241 end supports forl (See Figs. 1&1, 24 and 27.)

In filling and packing the carton, the end flaps for closing the fillingend after the packing is completed are opened. and eX- tended and it isnecessary to insert the flattened bands or boxes between the extendedflaps in packing the carton. Means is therefore provided in connectionwith the packing chamber to pass between the opposite flaps and holdthem in an open position Vwhile the packing operation is beingperformed. To insert this retaining means between the flaps, the cartonis moved longitudinally to the packing chamber. When the carton isfilled up to the scoring line and is moved away from the retainingdevice to disengage the fia-ps therefrom, some means movable with thecarton is necessary for supporting the flattenedY bands'in the cartonuntil the Vflaps are closed. The carton is delivered to the machinesidewise and with the flaps opened and when the support for the bandshas performed its function,

it is necessary to withdraw it from its Working position to permit theintroduction of the empty carton. Provision is therefore made for movingthe band supportingmechanism independently of the .main cartonsupporting carriage. This independent movement l prefer to accomplish byproviding an auxiliary carriage whereou the band supporting means ismounted. These two carriages, the main and the auxiliary, haveindependent crank shafts and oonnecting bars, as will be hereinafterdescribed in detail. The initial .movement of the crank connected withthe auxiliary carriage retraets the band support while the auxiliarycarriage is temporarily stationary and an empty carton is being insertedinto the main 'arriage lWhen this band support has been retracted, theauxiliary carriage and the main carriage are moved to the packingposition, ready to receive the bands or boxes from the packing chamber,as will hereinafter appear more in detail in the general description ofthe operation of the machine.

This main and auxiliary carriage construction allows me to provide meansfor holding the bands in place in the filled carton before the flaps areclosed and withdraw this holding means out of the path of the emptycarton when it is desired to place it in the main carriage, l may also,with this construction, provide a movement of the main carriage from adischarging to a packino position so that during such movement the meansin connection with theV packing chamber for holding the carton flaps ine during the packing operation can be iL dily inserted mechanicallybetween the flaps of the carton.

The main carriage section consists of two vertical. posts having` rigidhorizontal, longitudinal bars 244i at their lower end adapted to slidein the grooved rails 2412, as shown in Figs. E, 17 and 18. Cross bars2415 connect the posts 241?) 2 and 3) and horizontal longitudinal rails246 and 247 and 2li-6 and 2457 are ri gidly secured to the posts The endsupports 24-1 are arranged upon the posts 243.

The auxiliary carriage section is composed of the two vr al posts 248and 24:9, lmving =ross bars 2o@ and 251, and also having;- rigidhorizontal bars 252 adapted to slide in the groovefgl rails 242 andclips 251 thrrmgh which the horizontal rails 2116 and 2417 of the maincarriage loosely pass. lietaining` strips 25% for the sliding bars 24:4Y

and 2.52 are fastened to the erooved rails .242. The main carriage isoperated from whereby a short idle movement of the bars 25? at thebeginninpr of each stroke of the crank arm 255 is effected.

rlhe auxiliary carriage is operated from the clutch shaft .l by crankarms 259il rods 2G() and 266 having` sliding' connections with thevertical posts 2&8 and 2119, limited by stops and 262 (see F ig. l). Alink 263 l?) is pivoted to the conincting Arod 260 at 205i and to a bellcrank lever 255, as best shown in Figs. 7, 17, l5 and lf). vertical link267 connects the bell frank with an arm 2458 secured to a shall: 270 andan arm 27l (Figs. 2l, 25, 2b and fastened to the shaft 27() :is connected by a link 27 2 to a curved retaining' arm 271113. '.lhis arm normallyrests on the upper ila p oit the carton when packing, as shown in lligs.2-l and 25, and has the function oi closing.;` this flap after thecarton is filled, as shown in 26.

The means for delivering the empty can tons to the carriage, supportingthe carton in the carriage andremoving the carton for the endclosingoperation will now be made clear.

l preiter to arrange a chiite 27a (Fig. 4.-) into which the cartons maybe placed by the atteinlant and as the cartons emerge 'troni the bottonioi the chiite they are taught on a plate arranged upon a movable skeleton iframe (3. rllhe raised horizontal rail 2.7i' ot the skeleton trainesupports the eartons in the chiite when the lower carton on the plate2T5 is fed to the machine, as indicated in dotted lines in Fig. 4. rlhelink bars 278 and 27S) are pivoted below at 2S() to trame brackets 281and a link 284 connects the outer link bai' with a Jfollower lever thatis pivoted at 283 to the frame 30, and is at the upper end provided witha roller 285. A coil spring;` 286tends to hold the roller againstthe nam154i on the shaft 141.19 and when the shai't is rotated in thedirei-tion ol the arrow the parts will assume the positionshown indotted lines in Fig. l and a carton will be delivered through the openspace 2S? against vertical stop bars 288 and dropped upon thesnpporting;` shelves 289, as shown in full lines in Fig. rllhe shelves289 are supported on parallel link bars 290 pivoted to the traine 3() at291 and to the shelves at 292 Fig. i7 The link bars are prox'fidedwith'pins 293 projecting` through slots 254i in the trame 30 andtensioned by a spring` 293 against the bottom ot' the slots, holding theshelves in position 'tersnpiiorting the carton., as shown in Figs. andl?. When the carton is to be removed, he carriage is mi'ived forward orto the right and prejecting` lips 295 arranged Upon the carriage slides252 engage the pins 2023, swing; the link bars 26() and shelves 235 tothe position shown in Fiss. l and and allow the carton to beremoved.

To properly aline the cartons for packing' l pre'lier to tension thecarton against the vertical stoprbars 28S and as a ifnrther precautionprefer to drop retainingl bars 296 bark ol" the carton aiter it is inplace, as illustrated in Figs. i and fl. The tension device consists o"strips 29T and 298 snpported on 'pins 292), passing through the Yframeportion 242 having,` sockets 'for coil springs l() and 300, tensioned totorce the strips inward. rlilhe pins 299 are provided with slots 0lthrough which flat cam bars 303, fastened to the main carriage posts2-l-3, are adapted to slide when the carriage is moved. llecesses 30sthaving inclined edges 305 are provided in the bars 303 and when thecarriage is in position'or packing the carton, the recesses registerwith the pins 299 and the springs 300 torce thestrips 297 against thecarton, as shown in Figs. 3 and 9.

ln practice, l prefer to have the tension of the springs 300 slightlystronger than the springs 301 to torce the carton against the stop barslNhen the carriage is moved to the right for the removal ot the carton,the first movement engages the inclined edges of the recess 301i to theouter pin ends 302 of the slots 301, 'forcing the strips backward awayfrom the carton, as shown in Figs. et and l2, and at the last part ofthe movement the parallel link pins 293 are engaged by the projecting`lugs 295, forcing the link bars 290 and shelves 289 to the positionshown in Figs. flan'd 20, allowing,` the removal oic the carton. (ln thereverse movement of the carriage, the carton is timed to drop from thefeeding plate 275 between the time the shelves 289 have again been'forced in a snpporting position by the springs 293 and the strips 297forced inward by the springs 30() and 300.

The raising1 of the retaining bars 296 when the carton is to bedelivered from the feed shelr" 289 is attained as follows:

Bell cranks 305 are pivoted at 306 to the horizontal carriage rails 247and are connected together by a link 307 and are connected to theretainer bars 2% by links 308, The bars 296 slide freely throngijh slots309 in the rails 247 and are preferably held down by gravity alone. A.lever 31.0, pivoted at 311 in the carriage post 2li-3, is eonnected atits long` end by a link 312 tothe bell crank 305. The short end of thelever is provided with a roller 313 (Fig. l) that is adapted to come inengagement with they cano lGll on the shaft 160 when the carriage ismoved to the right i'or the replacing ot the cartons. The rotation ofthe cam lGflwhen in this position operates to raise the retainer bars296 through the connecting. link 308, bell cranks 305, link 312,lever-3l() and rollers 315B and keep them raised, as shown in Fig, il,until an. empty arten has been inserted,

lil)

